<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .icon-box {
            width: 53px;
            height: 53px;
            background-image: url('./images/footer-xuebitu.png');
            border: 1px solid;
        }

        .icon2 {
            background-position: -63px 0px;
        }

        .icon3 {
            background-position: -126px 0px;
        }
    </style>
</head>

<body>
    <div class="icon-box"></div>
    <div class="icon-box icon2"></div>
    <div class="icon-box icon3"></div>
</body>

</html>